server {
  listen 80;

  location / {
    root /usr/share/nginx/html;
    try_files $uri /index.html;
  }

  location /api/ {
    # Resolve the Docker service at request time. This prevents Nginx from
    # exiting when the Docker DNS entry is not ready during container startup.
    resolver 127.0.0.11 ipv6=off valid=10s;
    set $backend_upstream http://backend:8080;
    rewrite ^/api/(.*)$ /$1 break;
    proxy_pass $backend_upstream;
    proxy_http_version 1.1;

    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;

    proxy_cookie_path / "/; SameSite=Lax";
  }
}